Mongolia is a relatively dry place with great daily and seasonal temperature ranges. During the June and July fishing season the weather can be mixed, generally warm sunny days but with occasional low pressure weather systems that can last for two to three days with intermittent rain. 

During September and early October, the weather is typically pleasant, with sunny days and cold nights. However, you should come prepared for colder weather. Keep in mind that the camp elevations are at 1300m to 1800m and the camps are located at about the same latitude as the Canadian border.